PVC Paste Resin P440
P440 is a general-purpose, medium-molecular-weight PVC paste resin developed for plastisol processing. It offers good compatibility with plasticizers, controlled paste viscosity, reliable thermal stability, and consistent processing performance.
PVC Paste Resin | General-Purpose Grade | K-Value = 73–75 | Average Degree of Polymerization = 1450 ± 200
Product Parameters
Description
P440 is a general-purpose PVC paste resin supplied as a fine white powder. It has a medium molecular weight, an average degree of polymerization of approximately 1450 ± 200, and a K-value range of 73–75.
The grade provides good compatibility with plasticizers and other plastisol additives. It is designed to offer controlled paste viscosity, good thermal stability, water resistance, and reliable processing performance.
When mixed with suitable plasticizers and additives, P440 forms a PVC plastisol that can be processed by coating, dipping, spraying, foaming, and other paste-processing methods.
Applications
Typical applications include non-foamed and slightly foamed artificial leather, wallpaper, resilient flooring, PVC carpets, yoga mats, coated fabrics, dipping compounds, surface coatings, and other general-purpose plastisol products.
Packaging
P440 is typically supplied in 20 kg or 25 kg kraft-paper bags with an inner moisture-resistant liner. Jumbo-bag packaging may also be available depending on the manufacturer and current supply arrangement.
Final packing format, palletization, and container-loading quantity should be confirmed when placing an order.
Storage and Handling
Store the product in a clean, dry, cool, and well-ventilated warehouse. Keep the bags protected from moisture, rain, direct sunlight, contamination, and excessive heat.
Keep different production batches separated and use clean, dry transportation equipment. Packaging should remain closed until the material is required for processing.
Technical Specifications
The following values represent the listed technical specifications for PVC Paste Resin P440.
| No. | Property | Test Condition | Unit | Specification |
|---|---|---|---|---|
| 01 | Average Degree of Polymerization | — | — | 1450 ± 200 |
| 02 | K-Value | — | — | 73–75 |
| 03 | Viscosity Number | — | mL/g | 128–162 |
| 04 | Brookfield Viscosity | DOP 60%, 50 rpm | mPa·s | ≤5000 |
| 05 | Volatile Matter, Including Water | — | % | ≤0.40 |
| 06 | Residual Vinyl Chloride Monomer | — | mg/kg | ≤10 |
| 07 | Screen Residue | 63 μm sieve | % | ≤1.0 |
| 08 | Impurity Particle Count | — | pcs | ≤20 |
| 09 | Paste Thickening Rate | After 24 hours | % | ≤100 |
| 10 | Whiteness | 160°C for 10 minutes | % | ≥76 |
Technical values are based on the currently available P440 grade information. Final product specifications should be confirmed through the latest applicable TDS and batch COA before purchase.
About PVC Paste Resin
PVC paste resin is a fine-particle PVC powder developed for plastisol processing. The resin itself is supplied as a powder. When mixed with suitable plasticizers, it forms a stable liquid paste known as PVC plastisol.
Fillers, stabilizers, pigments, foaming agents, viscosity modifiers, and other additives may be incorporated according to the required processing behavior and finished-product properties.
After coating, dipping, molding, or another suitable application process, the plastisol is heated to fuse the PVC particles and form the finished flexible or foamed PVC product.